This ball gag assembly is adjustable, designed to cinch down and hold the gag tightly in place with elegant style. Just twist the thumb screws on the sides to slide the bar supporting the gag into place, then tighten to clamp it into place. The smooth bar curves around the back of the neck, made of smooth seamless stainless steel. The gag is odorless and tasteless, and sized for maximum restriction while staying comfortable. Measurements: adjustable from 4 to 8.5 inches in length, 6.25 in width, gag measures 1.75 in diameter Material: Stainless steel, rubber Color: Grey